/* 
 * CSS หลักสำหรับระบบส่งงานและตรวจการบ้าน
 * ออกแบบโดย: www.kruwirat.com
 */

/* Import Google Fonts - Kodchasan */
/* @import url('https://fonts.googleapis.com/css2?family=Kodchasan:wght@300;400;500;600;700&display=swap'); */
@import url('https://fonts.googleapis.com/css2?family=Kanit:ital,wght@0,100;0,200;0,300;0,400;0,500;0,600;0,700;0,800;0,900;1,100;1,200;1,300;1,400;1,500;1,600;1,700;1,800;1,900&family=Kodchasan&display=swap');

/* Root Variables */
:root {
    --primary-color: #667eea;
    --secondary-color: #764ba2;
    --accent-color: #f093fb;
    --success-color: #4CAF50;
    --warning-color: #FF9800;
    --danger-color: #f44336;
    --info-color: #2196F3;
    --light-color: #f8f9fa;
    --dark-color: #343a40;
    --white-color: #ffffff;
    
    /* Gradient Colors */
    --gradient-primary: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    --gradient-success: linear-gradient(135deg, #4CAF50 0%, #45a049 100%);
    --gradient-warning: linear-gradient(135deg, #FF9800 0%, #f57c00 100%);
    --gradient-danger: linear-gradient(135deg, #f44336 0%, #d32f2f 100%);
    --gradient-info: linear-gradient(135deg, #2196F3 0%, #1976d2 100%);
    
    /* Card Gradients */
    --card-gradient-1: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --card-gradient-2: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
    --card-gradient-3: linear-gradient(135deg, #4facfe 0%, #00f2fe 100%);
    --card-gradient-4: linear-gradient(135deg, #43e97b 0%, #38f9d7 100%);
    --card-gradient-5: linear-gradient(135deg, #fa709a 0%, #fee140 100%);
    
    /* Shadow */
    --shadow-sm: 0 2px 4px rgba(0,0,0,0.1);
    --shadow-md: 0 4px 6px rgba(0,0,0,0.1);
    --shadow-lg: 0 10px 15px rgba(0,0,0,0.1);
    --shadow-xl: 0 20px 25px rgba(0,0,0,0.15);
    
    /* Border Radius */
    --border-radius-sm: 0.375rem;
    --border-radius-md: 0.5rem;
    --border-radius-lg: 0.75rem;
    --border-radius-xl: 1rem;
    
    /* Transition */
    --transition-base: all 0.3s ease;
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.5s ease;
}

/* Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Kanit', sans-serif;
    background: var(--gradient-primary);
    color: var(--dark-color);
    line-height: 1.6;
    min-height: 100vh;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    margin-bottom: 1rem;
}

.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Modern Buttons */
.btn-modern {
    background: var(--gradient-primary);
    border: none;
    color: white;
    padding: 12px 30px;
    border-radius: var(--border-radius-lg);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--shadow-md);
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-modern::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: var(--transition-base);
}

.btn-modern:hover::before {
    left: 100%;
}

.btn-modern:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    color: white;
}

/* Button Variants */
.btn-success-gradient {
    background: var(--gradient-success);
}

.btn-warning-gradient {
    background: var(--gradient-warning);
}

.btn-danger-gradient {
    background: var(--gradient-danger);
}

.btn-info-gradient {
    background: var(--gradient-info);
}

/* Modern Cards */
.card-modern {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-lg);
    transition: var(--transition-base);
    overflow: hidden;
}

.card-modern:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.card-header-gradient {
    background: var(--gradient-primary);
    color: white;
    padding: 1.5rem;
    border-bottom: none;
    position: relative;
}

.card-header-gradient::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--accent-color), transparent);
}

/* Card Variants */
.card-header-success {
    background: var(--gradient-success);
}

.card-header-warning {
    background: var(--gradient-warning);
}

.card-header-danger {
    background: var(--gradient-danger);
}

.card-header-info {
    background: var(--gradient-info);
}

/* Dashboard Cards */
.dashboard-card {
    background: var(--card-gradient-1);
    color: white;
    border-radius: var(--border-radius-xl);
    padding: 2rem;
    text-decoration: none;
    display: block;
    transition: var(--transition-base);
    position: relative;
    overflow: hidden;
}

.dashboard-card::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    transition: var(--transition-base);
}

.dashboard-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: var(--shadow-xl);
    color: white;
    text-decoration: none;
}

.dashboard-card:hover::before {
    top: -25%;
    right: -25%;
}

.dashboard-card-2 { background: var(--card-gradient-2); }
.dashboard-card-3 { background: var(--card-gradient-3); }
.dashboard-card-4 { background: var(--card-gradient-4); }
.dashboard-card-5 { background: var(--card-gradient-5); }

.dashboard-card .card-icon {
    font-size: 3rem;
    opacity: 0.8;
    margin-bottom: 1rem;
}

.dashboard-card .card-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.dashboard-card .card-value {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.dashboard-card .card-subtitle {
    opacity: 0.8;
    font-size: 0.9rem;
}

/* Sidebar Styles */
.main-sidebar {
    background: linear-gradient(180deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    box-shadow: var(--shadow-lg);
}

.sidebar-menu .nav-link {
    color: rgba(255, 255, 255, 0.8);
    border-radius: var(--border-radius-md);
    margin: 0.2rem 0.5rem;
    transition: var(--transition-base);
}

.sidebar-menu .nav-link:hover,
.sidebar-menu .nav-link.active {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    backdrop-filter: blur(10px);
}

/* Header Styles */
.main-header {
    background: var(--white-color);
    box-shadow: var(--shadow-md);
    border-bottom: 3px solid var(--primary-color);
}

.navbar-nav .nav-link {
    color: var(--dark-color);
    font-weight: 500;
    transition: var(--transition-base);
}

.navbar-nav .nav-link:hover {
    color: var(--primary-color);
}

/* Footer Styles */
.main-footer {
    background: var(--dark-color);
    color: white;
    padding: 2rem 0;
    margin-top: auto;
}

.footer-logo {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    object-fit: cover;
    border: 3px solid var(--primary-color);
}

/* Form Styles */
.form-control-modern {
    border: 2px solid #e9ecef;
    border-radius: var(--border-radius-md);
    padding: 12px 16px;
    font-size: 1rem;
    transition: var(--transition-base);
    background: rgba(255, 255, 255, 0.9);
}

.form-control-modern:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.2rem rgba(102, 126, 234, 0.25);
    background: white;
}

.form-label-modern {
    font-weight: 500;
    color: var(--dark-color);
    margin-bottom: 0.5rem;
}

/* Table Styles */
.table-modern {
    background: white;
    border-radius: var(--border-radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-md);
}

.table-modern thead {
    background: var(--gradient-primary);
    color: white;
}

.table-modern tbody tr {
    transition: var(--transition-fast);
}

.table-modern tbody tr:hover {
    background: rgba(102, 126, 234, 0.05);
}

/* Modal Styles */
.modal-content-modern {
    border: none;
    border-radius: var(--border-radius-xl);
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.modal-header-modern {
    background: var(--gradient-primary);
    color: white;
    border-bottom: none;
}

.modal-footer-modern {
    border-top: 1px solid rgba(0, 0, 0, 0.1);
    background: var(--light-color);
}

/* Alert Styles */
.alert-modern {
    border: none;
    border-radius: var(--border-radius-lg);
    box-shadow: var(--shadow-md);
    border-left: 4px solid;
}

.alert-success-modern {
    background: linear-gradient(135deg, rgba(76, 175, 80, 0.1) 0%, rgba(69, 160, 73, 0.1) 100%);
    border-left-color: var(--success-color);
}

.alert-warning-modern {
    background: linear-gradient(135deg, rgba(255, 152, 0, 0.1) 0%, rgba(245, 124, 0, 0.1) 100%);
    border-left-color: var(--warning-color);
}

.alert-danger-modern {
    background: linear-gradient(135deg, rgba(244, 67, 54, 0.1) 0%, rgba(211, 47, 47, 0.1) 100%);
    border-left-color: var(--danger-color);
}

.alert-info-modern {
    background: linear-gradient(135deg, rgba(33, 150, 243, 0.1) 0%, rgba(25, 118, 210, 0.1) 100%);
    border-left-color: var(--info-color);
}

/* Badge Styles */
.badge-modern {
    padding: 0.5rem 1rem;
    border-radius: var(--border-radius-lg);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.badge-gradient-primary {
    background: var(--gradient-primary);
    color: white;
}

.badge-gradient-success {
    background: var(--gradient-success);
    color: white;
}

.badge-gradient-warning {
    background: var(--gradient-warning);
    color: white;
}

.badge-gradient-danger {
    background: var(--gradient-danger);
    color: white;
}

/* Loading Spinner */
.spinner-modern {
    width: 40px;
    height: 40px;
    border: 4px solid rgba(102, 126, 234, 0.3);
    border-left: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Progress Bar */
.progress-modern {
    height: 10px;
    border-radius: var(--border-radius-lg);
    background: rgba(102, 126, 234, 0.1);
    overflow: hidden;
}

.progress-bar-modern {
    background: var(--gradient-primary);
    border-radius: var(--border-radius-lg);
    transition: var(--transition-base);
}

/* File Upload Area */
.file-upload-area {
    border: 2px dashed var(--primary-color);
    border-radius: var(--border-radius-lg);
    padding: 3rem 2rem;
    text-align: center;
    background: rgba(102, 126, 234, 0.05);
    transition: var(--transition-base);
    cursor: pointer;
}

.file-upload-area:hover {
    background: rgba(102, 126, 234, 0.1);
    border-color: var(--secondary-color);
}

.file-upload-area.dragover {
    background: rgba(102, 126, 234, 0.15);
    border-color: var(--accent-color);
    transform: scale(1.02);
}

/* Animations */
.fade-in {
    animation: fadeIn 0.5s ease-in;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.slide-in-right {
    animation: slideInRight 0.5s ease-out;
}

@keyframes slideInRight {
    from { opacity: 0; transform: translateX(50px); }
    to { opacity: 1; transform: translateX(0); }
}

.bounce-in {
    animation: bounceIn 0.6s ease-out;
}

@keyframes bounceIn {
    0% { opacity: 0; transform: scale(0.3); }
    50% { transform: scale(1.05); }
    70% { transform: scale(0.9); }
    100% { opacity: 1; transform: scale(1); }
}

/* Responsive Design */
@media (max-width: 768px) {
    .dashboard-card {
        padding: 1.5rem;
        margin-bottom: 1rem;
    }
    
    .dashboard-card .card-icon {
        font-size: 2rem;
    }
    
    .dashboard-card .card-value {
        font-size: 2rem;
    }
    
    .btn-modern {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .card-modern {
        margin-bottom: 1rem;
    }
}

@media (max-width: 576px) {
    .dashboard-card .card-title {
        font-size: 1.2rem;
    }
    
    .dashboard-card .card-value {
        font-size: 1.8rem;
    }
    
    .card-header-gradient {
        padding: 1rem;
    }
}

/* Print Styles */
@media print {
    .main-sidebar,
    .main-header,
    .main-footer,
    .btn,
    .no-print {
        display: none !important;
    }
    
    .content-wrapper {
        margin: 0 !important;
        padding: 0 !important;
    }
    
    .card-modern {
        box-shadow: none;
        border: 1px solid #ddd;
    }
}

/* Utility Classes */
.glass-effect {
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.shadow-modern {
    box-shadow: var(--shadow-lg);
}

.rounded-modern {
    border-radius: var(--border-radius-xl);
}

.text-shadow {
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hover-scale:hover {
    transform: scale(1.05);
    transition: var(--transition-base);
}

.hover-glow:hover {
    box-shadow: 0 0 20px rgba(102, 126, 234, 0.5);
    transition: var(--transition-base);
}